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← Document results/DEP Box 18/GCMS X 5/10/02 A 5/14/02
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GC/MS results for unknown compounds and surrogates, sample AE10983, May

Machine-extracted title · confidence 100%

Laboratory report showing GC/MS analysis of sample AE10983 with surrogate recovery data for 2,4-DDD.

NYC-WTC_000023949–000023969

Folder label: “GCMS X 5/10/02 A 5/14/02

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Scanned page image, NYC-WTC_000023961
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NYC 9/11 Public Portal Document WLp tilit LSD

Data File : C:\MSDCHEM\l\DATA\051402\10983.D Vial: 12 Acq On : 14 May 2002 10:28 pm Operator: Mclean Sample : 5/10 kb Inst : Instrumen Mise : Multiplr: 1.00 MS Integration Params: LSCINT.e Quant Method : C:\MSDCHEM\1\METHODS\050102.M (Chemstation Integrator) Title : 508 Modified GC/MS scan Library : C:\DATABASE\NIST98.L Peak Number 5 2-Pentanone, 4-hydroxy-4-me ... Concentration Rank 1

R.T. EstConc Area Relative to ISTD R.T.

5.98 20.48 ug/L 19762400 1,4 -Dichlorob'enzene-d4 9.94 Hit# of 5 Tentative ID MW MolForm CAS# Qual

1 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 78 2 2-Pentanone, 4-hydroxy-4-methyl- 116 C6H1202 000123-42-2 3 2 -Pent anone, 4-hydroxy-4-methyl- 116 C6H12O2 000123-42-2 50 4 Acetone____ 58 C3H60 000067-641 32 Abundance Scan 494 (5.982 min): 10983.D (-474) (-) m/z 43.10 100.00% 4}3

5000- 59 101 5.60 5.80 6.00 6.20 6.40 69 75 83 , | 117 125 O+ ............. 37,11 । । ■ ■ ■ ■ । । ■ i ■ ■ ■ < । 1 ■ ■ ■ i ■ ■ ■ * I ■ ■ 1 ' i ' ■ m/z 59.10 36.30% miz-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #109755:2-Pentanone, 4-hydroxy-4-methyl- 43 ) 5000 1 i > 1 ■ > । < 1 "II’III’’ 59 5.60 5.80 6.00 6.20 6.40 m/z 58.10 21.22% 15 31 101

m/z-> 0! TTT 10 I 20 25, I 37, ,, 30 40 50 +53+ 83 , | ■ I ■ ■ ■ ' i 1 1 ' 1 i ''' 1 1 i ' ■ ■ 1 i 1 ■ 1 ■ i ■ 1 1 ■ i ■ ■ ' ■ i ■ ■

60 70 80 90 100 110 120 130 Abundance #109756: 2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 6.40 5000 59 m/z 101.10 14.56%

..... .—1 137, 93 — 101 Of ,,, TTmrTu CTIT I'" I' ''I m/z-> 10 20 30 40 50 60 70 80 90 100 110 120 130 Abundance #5851:2-Pentanone, 4-hydroxy-4-methyl- 43 5.60 5.80 6.00 6.20 6.40 m/z 41.10 5.99%

5000- 59 101

m/z-> 0 ....... 10 20 27,1.37,1 30 40 50 53,| . 67, . 77,83 91 60 Hr TT’T 70 80 90 100 110 120 130 ' ' 1 i 1 ' 1 1 i ' ■ ‘ 1 i ■ ' 1 ' i r ■ ,.......... 5.60 5.80 .............. ................. 6.00 6.20 6.40

10983 .D 050102 .M Thu May 16 14:39:41 2002 Page 8

NYC-WTC_000023961

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NYC-WTC_000023961Source: NYC Law Department, mirrored locally

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